J4 Template migration issues

Also I was triing to get access to the users panel and I'm unnable to edit anything.

The error: "An error has occurred.
0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()"

Check it here: https://ibb.co/wMzzvPm

Hi, can someone please help me on this?

Hi,

I've got 3 tickets open regarding problems with the oneclip template j4 migration. Can someone please reply me in order to solve the errors I'm getting

Kind regards,
Luis

Hi,

I've sent the other acess available without the multifactor in hidden content.

It gives me also an error editing the users, where I can't manage the accounts:

Error message:
An error has occurred.
0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()

Error screenshot: https://postimg.cc/rRpKp2QV

Hi Toufiq, thanks for your reply.

We have still some issues in the J4 website. Is appearing the following errors:

• two logos instead of one, and looking too smal (should appear like in the j3 website: https://vchorizonte21.ao/)
• the language module has some white shape behind.
• close to the footer has some bar with info about the joomla (J!info and queries) that is not suposed to be there.

The screen you shared was about the orignal template (J3).

In the J4 template where you have done the updates, it has the problems I've mentioned:
https://vchorizonte21.ao/novo/index.php/pt/

Please check again: https://ibb.co/3v1mgTY